<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>openlayer 地图</title>
</head>
<style>
    html,
    body {
        width: 100%;
        height: 100%;
        padding: 0;
        margin: 0;
    }

    #app {
        width: 100%;
        height: 100%;
        position: relative;
        /* background-color: aqua; */
    }

    .active-btn {
        background-color: dodgerblue;
    }
</style>

<body>
    <div id="app"></div>
    <script type="module" src="/src/main.js"></script>
</body>

</html>